The word "tesseract" was coined by the English mathematician Charles Howard Hinton. As he believed, the three-dimensional world in which we live divides the four-dimensional world, inaccessible to our perception, into two parts: Ana (the upper world) and Kata (the lower). So a concrete slab divides a house into two floors.
So Neil Patel (chief developer of Avalon Acoustics) divided his flagship model into two sections - upper and lower. The system is supplied in four boxes with a total weight of 908 kg (the weight of each speaker assembled without packaging is 375 kg). The total height of the acoustic systems is 2.21 m. The purpose of the division is to minimize the influence of the powerful LF section on the MF and HF, to obtain a more rigid and stable design, and, finally, to make the product more transportable.